Home / 39,172,387.20-58,766,875.20-11,876,438.40

Finding the Fourth Proportional to 39,172,387.20, 58,766,875.20 and 11,876,438.40

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Solution

The fourth proportional to 39,172,387.20, 58,766,875.20 and 11,876,438.40 is: 17,817,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172,387.20 : 58,766,875.20 = 11,876,438.40 : x
  2. Step 2: Convert to fraction form
    39,172,387.20/58,766,875.20 = 11,876,438.40/x
  3. Step 3: Cross multiply
    39,172,387.20x = 58,766,875.20 × 11,876,438.40
  4. Step 4: Simplify right side
    39,172,387.20x = 697,941,173,273,287.75
  5. Step 5: Solve for x
    x = 697,941,173,273,287.75/39,172,387.20
  6. Step 6: Final answer
    x = 17,817,172.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.